Figure 12-18: R I V U X G
Jupiter’s Main Ring This Galileo image shows Jupiter’s main ring almost edge-on. The ring’s outer radius, about 129,000 km from the center of Jupiter, is close to the orbit of Adrastea, the second closest (after Metis) of Jupiter’s moons. Not shown is an even larger and even more tenuous pair of “gossamer rings,” one of which extends out to 181,000 km and the other out to 222,000 km.

(NASA/JPL; Cornell University)